SYSTEM INCLUDING FEEDWATER HEATER FOR EXTRACTING HEAT FROM LOW PRESSURE STEAM TURBINE - A system is disclosed including a low pressure steam turbine; an air-cooled condenser (ACC) in fluid connection with the low pressure (LP) steam turbine, the ACC for receiving a portion of steam from an exhaust of the LP steam turbine; a feedwater heater in fluid connection with the low pressure steam turbine via a conduit, the feedwater heater for receiving a portion of supply steam from the LP steam turbine; and a condensate pump in fluid connection with the ACC and the feedwater heater, the condensate pump for receiving condensate fluid from the ACC and drain fluid from the feedwater heater.

12-29-2011

20090205338

High efficiency dual cycle internal combustion engine with steam power recovered from waste heat - A high efficiency combined cycle internal combustion and steam engine includes a cylinder having a piston mounted for reciprocation therein with an internal combustion chamber outward of the piston, a fixed cylinder cap sealingly and slideably mounted within the piston and a steam expansion/recompression chamber inside the piston adjacent the cylinder cap. The cylinder cap can be unheated or heated externally to reduce condensation of steam entering the steam chamber from a steam generator fired by waste combustion heat. Steam remaining in the cylinder when a steam exhaust valve closes at the top center position is recompressed during an inward stroke of the piston up to admission pressure prior to admitting the next charge of steam. One valve or a pair of retractable steam inlet valves connected in series within the cylinder cap act in cooperation with steam recompression and clearance volume to achieve an effective zero steam chamber clearance and a gain in mean Rankine cycle temperature to maximize efficiency. The amount of steam admitted each outward stroke is continuously regulated, e.g. by shifting the phase of one steam admission valve of a pair to vary their overlap for determining the steam mass admitted during each cycle to reduce specific fuel consumption. Other valves balance steam displacement with the steam generator output to use steam more efficiently. Engine coolant can be evaporated in a combustion chamber cooling jacket to form steam which is then superheated in a combustion exhaust manifold.

08-20-2009

20110030374

STEAM TURBINE FACILITY - Provided is a steam turbine facility capable of suppressing the possibility of vibration occurrence and a drastic increase in facility cost, thereby realizing an increase in size of the facility, even if steam conditions of 650° C. or higher are adopted. In a steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine, the high-pressure turbine is separated into a first high-pressure turbine part on a high-temperature and high-pressure side and a second high-pressure turbine part on a low-temperature and low-pressure side, the intermediate-pressure turbine is separated into a first intermediate-pressure turbine part on the high-temperature and high-pressure side and a second intermediate-pressure turbine part on the low-temperature and low-temperature side, the first high-pressure turbine part and the first intermediate-pressure turbine part are integrated to form a first integrated part, the second high-pressure turbine part and the second intermediate-pressure turbine part are integrated to form a second integrated part, at least any one of the rotors and casings of the turbines into which steam with a temperature of 650° C. or higher is introduced are constructed by joining together a plurality of members formed from Ni-based alloy through welding as a whole.

02-10-2011

20140283518

TURBINE SYSTEM - Provided is a steam turbine system including: at least one high pressure turbine, and/or at least one intermediate pressure turbine, and at least one first low pressure turbine, mounted on a first rotary shaft that is coupled to drive at least one first electrical generator; and at least one further low pressure turbine, mounted on a further rotary shaft that is coupled to drive at least one further electrical generator; and the turbine system further including a steam supply system to supply low pressure steam to the low pressure turbines provided with a steam outlet to enable extraction of auxiliary process steam from a location in the steam supply system upstream of the further low pressure turbine but not upstream of the first low pressure turbine.

09-25-2014

060675000

Gravity motor actuated by weight of condensed vapor

1

20100212321

HEAT EXCHANGERS AND TOWER STRUCTURE FOR DENSITY-DRIVEN POWER GENERATION - A power-generating tower comprises: at least one of the lower heat-exchange assemblies, at least one of the upper heat-exchange assemblies, a tower structure arranged to support each upper heat-exchange assembly, at least one ascending circulating-fluid column within the tower structure, at least one descending circulating-fluid column within the tower structure, and at least one turbine. Each ascending column is arranged and connected to receive the circulating fluid from at least one of the lower heat-exchange assemblies and to convey the circulating fluid thus received upward and into at least one of the upper heat-exchange assemblies. Each descending column is arranged and connected to receive the circulating fluid from at least one of the upper heat-exchange assemblies and to convey the circulating fluid thus received downward and into at least one of the lower heat-exchange assemblies. The turbine is arranged to be driven by flow of circulating fluid.

08-26-2010

Entries

Document

Title

Date

20140245737

STEAM POWER CYCLE SYSTEM - There is provided a steam power cycle system in which steam power cycles using pure materials as a working fluid is used in a multiple stage to reduce pressure loss in the flow channels in the respective heat exchanger so that the fluid serving as heat sources has been caused to make an effective heat exchange with the working fluid. More specifically, not only that the respective flow channels for the fluid serving as heat sources in the evaporator and the condenser in the respective steam power cycle units are connected in series to each other, but the evaporator and the condenser comprise a cross-flow type heat exchanger and are arranged respectively in a flowing direction of the fluid serving as heat source. Consequently, it is possible to reduce the length of the flow channels to the minimum necessary, simplify the flow channel structure, and reduce the pressure loss.

09-04-2014

20140047841

PUMPING DEVICE USING VAPOR PRESSURE FOR SUPPLYING WATER FOR POWER PLANT - The present invention relates to a pumping device using vapor pressure for supplying water for a power plant, which uses the vapor pressure that is stored in a vapor generator used in the power plant to more quickly and readily supply water to the vapor generator without separately using a high-capacity pump and a condenser. The present invention is characterized by significantly saving equipment cost, because various high-capacity pumps and condensers are not required at all, enhancing energy efficiency and operability by eliminating unnecessary power consumption that is used to operate same, reducing maintenance costs, and actively and efficiently preserving nature and the environment by fundamentally eliminating hot water and sewage, which are byproducts of nuclear or thermal power generation, that are discharged into the ocean without treatment.

02-20-2014

20140345280

WASTE HEAT RECOVERY DEVICE FOR A MARINE VESSEL - A waste heat recovery device for a marine vessel is disclosed. According to the embodiments of the present invention, the waste heat recovery device for a marine vessel includes: a heat exchanger, which recovers heat from the exhaust fumes discharged from the engine, to heat a first refrigerant under uniform pressure; a turbine which is driven by adiabatically expanding the first refrigerant heated under uniform pressure; a condenser which condenses the adiabatically expanded first refrigerant; and a heat exchanging pump which compresses the condensed first refrigerant so as to re-circulate the compressed first refrigerant to the heat exchanger.

11-27-2014

20090241545

RADIAL COUNTERFLOW STEAM STRIPPER - Turbine exhaust steam, axially fed between counter-rotating radial flow disk turbines, separates into: (1) a radially inward flow of low enthalpy dry steam, and (2) a radially outward flow of high enthalpy steam, noncondensibles, and condensate. The radially inward flow goes to a conventional condenser. The radially outward flow loses enthalpy turning the disk turbines as it passes in the boundary layers against the disks, thus becoming low enthalpy dry steam, and the counter-rotation of the disks by impinging mass flow of condensate, high enthalpy steam, and noncondensibles sustains a cascade of dynamic vortex tubes in the shear layer between the boundary layers. The low enthalpy dry steam resulting from work being done flows into the condenser through the vortex cores of fractal turbulence. Condensate exits the periphery of the workspace, ready to be pumped back into the Rankine cycle. More condensate is recovered from the low enthalpy vapor in the condenser. Heat rejection from the cooling water circuit is easier because a significant mass fraction does not enter the condenser. Dynamic evaporative cooling of cooling water, uses fractal turbulence between counter-rotating centrifugal impellers, fed at their common axis of rotation with cooling water. Chilled water flows radially outward to recirculation, and hot water and vapor flows radially inward to the impeller axis of rotation. Vapor is stripped through the vortex cores of fractal turbulence into a condenser where it condenses as distilled water. Ultimate heat rejection is into the environment without discharge of vapor.

WASTE HEAT RECOVERY SYSTEM - The present invention provides a waste heat recovery system, comprising: an internal combustion engine for supplying a high grade waste heat thermal resource fluid and a low grade waste heat thermal resource fluid; an intermediate thermal cycle by which an intermediate fluid is vaporized by means of the high grade waste heat thermal resource fluid and is expanded within a first turbine, whereby produce is produced; and an organic thermal cycle by which an organic motive fluid is preheated by means of the low grade waste heat thermal resource fluid and is vaporized by means of the discharge of the intermediate fluid from the first turbine, said vaporized organic motive fluid being expanded in a second turbine, whereby power is produced.

12-16-2010

20140165567

ENGINE-WASTE-HEAT UTILIZATION DEVICE - An engine-waste-heat utilization device includes a Rankine cycle with a heat exchanger that is configured to recover engine-waste-heat to refrigerant, an expander that is configured to generate power using the refrigerant coming out from the heat exchanger, a condenser that is configured to condense the refrigerant coming out from the expander and a refrigerant pump that is configured to supply the refrigerant coming out from the condenser to the heat exchanger by being driven by the expander, a power transmission mechanism (crank pulley, pump pulley, belt) that is configured to transmit surplus power to the engine when the expander has spare power even if the refrigerant pump is driven, a clutch that is configured to connect and disconnecting power transmission by the power transmission mechanism, and a case provided near a high-temperature part of the engine such that a shaft of the expander and that of the refrigerant pump are coaxially arranged, the clutch, the refrigerant pump and the expander are integrally housed in this order and the expander has a higher temperature than the clutch.

06-19-2014

20100319348

WASTE HEAT RECOVERY SYSTEM - A waste heat recovery system in which hot waste fluids, such as flue gasses, pass through a fluid heat exchanger configured to transfer energy in the form of heat to a heat transfer liquid, preferably molten salt. The energy in the molten salt is used to generate useable power such as electrical energy. The waste gas heat recovery system is especially adapted for use with batch processes, such as steelmaking and copper converting, and allows continuous or substantially continuous power production.

MULTISTAGE PRESSURE CONDENSER AND STEAM TURBINE PLANT EQUIPPED WITH THE SAME - A pressure bulkhead has a plurality of holes and divides a low-pressure chamber at low pressure in the vertical direction. A cooling-tube bank is located in an upper section of the low-pressure chamber and performs heat exchange with low-pressure steam guided to the low-pressure chamber by introducing coolant therein to condense the low-pressure steam to low-pressure steam condensate. A reheat chamber serves as a lower section of the low-pressure chamber and stores the low-pressure steam condensate falling from the holes in the pressure bulkhead. A high-pressure-steam introducing unit introduces high-pressure steam within a high-pressure chamber at high pressure to the reheat chamber. A plurality of plate members are parallel to each other below the pressure bulkhead and extend in a falling direction of the condensate falling from the holes in the pressure bulkhead.

08-30-2012

20100251714

AIR-WATER POWER GENERATION SYSTEM - The Air-Water Power Generation System utilizes the temperature differential between warm air and a surface cooled by water evaporation. To enhance the temperature differential, the air that evaporates the water is first cooled by releasing heat to boil the working fluid in a boiler and then is cooled further by a counter-flow heat exchanger before the air enters the condenser where a water film is evaporating. The air then becomes colder as the water evaporates in the condenser, and this provides the cooling to condense the working fluid. Finally, the cold air flows out of the condenser and flows back through the counter-flow heat exchanger to provide the cooling of the air flowing from the boiler.

10-07-2010

20100251713

Steam turbine power plant - An intermediate-pressure turbine is divided into a high-temperature, high-pressure side high-temperature, intermediate-pressure turbine section

Heat Recovery Steam Generator Boiler Tube Arrangement - A heat recovery steam generator includes a casing having an inlet and an outlet, a boiler tube disposed in the casing, the boiler tube defining an inner cavity and an outer surface, the boiler tube having a cross-sectional shape with a longitudinal axis and a transverse axis, wherein a length of the longitudinal axis is greater than a length of the transverse axis, and at least one fin arranged on the outer surface of the boiler tube.

07-26-2012

20110283704

Power Plant - A boiling water nuclear power plant supplies steam from a reactor to high-pressure and low-pressure turbines. Water (feed water) generated by condensing steam in a condenser is heated by low-pressure and high-pressure feed water heaters and supplied to the reactor. The steam discharged from the low-pressure turbine is compressed by a steam compression apparatus (a heat pump) and supplied to one of the low-pressure feed water heaters to heat feed water. The steam extracted from the low-pressure turbine is also supplied to the low-pressure feed water heater. When power required for the steam compression apparatus is Q

RECOVERY OF MERCURY CONTROL REAGENTS BY TRIBO-ELECTRIC SEPARATION - A method and apparatus for recovering mercury control reagents from particulate materials is disclosed. The particulate materials include fly ash mixed with mercury control reagents collected from boiler flue gases. The particulate materials are provided to an electrostatic separation system, which is operated under predetermined conditions so as to produce a concentrated stream of the mercury control reagent and a diluted stream containing minimal mercury control reagent.

12-01-2011

20110167825

PLANT FOR PRODUCING COLD, HEAT AND/OR WORK - A plant for the producing of cold, heat and/or work. The plant includes at least one modified Carnot machine having a first assembly that includes an evaporator Evap combined with a heat source, a condenser Cond combined with a heat sink, a device DPD for pressurizing or expanding a working fluid GT, a means for transferring said working fluid GT between the condenser Cond and DPD, and between the evaporator Evap and DPD; a second assembly that includes two transfer vessels CT and CT′ that contain a transfer liquid LT and the working fluid GT in the form of liquid and/or vapor; a means for selectively transferring the working fluid GT between the condenser Cond and each of the transfer vessels CT and CT′, as well as between the evaporator Evap and each of the transfer enclosures CT and CT′; and a means for selectively transferring the liquid LT between the transfer vessels CT and CT′ and the compression or expansion device DPD, said means including at eat hydraulic converter.

Steam Engine - A steam engine has a pipe shaped fluid container, a heating and cooling devices respectively provided at a heating and cooling portions of the fluid container, and an output device connected to the fluid container, so that the output device is operated by the fluid pressure change in the fluid container, to generate an electric power. In such a steam engine, an inner radius “r

12-18-2008

20080282701

External combustion engine - An external combustion engine provided with a plurality of evaporators and stabilized in output and efficiency, that is, an engine provided with at least one main container, a plurality of evaporators heating the working medium to evaporate, condensers cooling the vapor of the working medium evaporated at the evaporators to make it condense, an output part communicated with the other end of the main container and converting displacement of a liquid part of the working medium occurring due to fluctuations in volume of the working medium accompanying evaporation and condensation of the working medium to mechanical energy for output, a single main container pressure adjusting means adjusting an internal pressure of the main container, and controlling means for controlling the main container pressure adjusting means based on a lowest temperature in the temperatures of the plurality of evaporators constituting a minimum evaporator temperature.

11-20-2008

20100126173

Rotary propane steam engine road vehicle - The Rotary Propane Steam Engine and Road Vehicle is an invention that substitutes a low carbon fuel, propane, to supply energy to a road vehicle, which can be used in place of the polluting gasoline engine.

05-27-2010

20100139276

Method of Efficiency and Emissions Performance Improvement for the Simple Steam Cycle - A method for improvement of a fossil fuel energy conversion into electrical energy for the simple sub- and supercritical steam cycle is proposed through introduction of additional regenerative cycle duties to improve the evaporation rate per unit of fuel burned, thus minimizing condenser heat loss of the working media. The additional duties provide a supplemental energy credit in the form of heat input to a steam generator where a modified combustion process is realized to convert fossil fuel into carbon monoxide and hydrogen at atmospheric pressure and thus achieving an essential reduction of nitrogen oxides (NOx) formation. The additional duties also involve a direct contact heat transfer to recover latent and thermal energy, contained in the discharged combustion products to provide yet another energy credit that satisfies both conventional and/or added regenerative cycle duties. A water surplus is also achieved in the said process of heat recovery from the combustion products to significantly improve water usage of the simple steam plant. The proposed heat recovery process also minimizes coolant usage while achieving a complete water recovery from combustion products and maintaining draft capabilities in the stack.

06-10-2010

20090188254

Kinetic steam condenser - Method and system for condensing steam at any temperature, the steam being in contact with a large water surface, whereby the relative temperatures of the steam and water are regulated so that the steam is kept at under-saturation pressure and the water temperature is kept at up to 100° C.

SYSTEM AND METHOD OF WASTE HEAT RECOVERY - A novel Rankine cycle system configured to convert waste heat into mechanical and/or electrical energy is provided. In one aspect, the system provided by the present invention comprises a novel configuration of the components of a conventional Rankine cycle system; conduits, ducts, heaters, expanders, heat exchangers, condensers and pumps to provide more efficient energy recovery from a waste heat source. In one aspect, the Rankine cycle system is configured such that an initial waste heat-containing stream is employed to vaporize a first working fluid stream, and a resultant heat depleted waste heat-containing stream is employed to aid in the production of a second vaporized working fluid stream. The Rankine cycle system is adapted for the use of supercritical carbon dioxide as the working fluid.

12-04-2014

20080264062

Isothermal power - This invention provides means for producing power by using isothermal compressors and isothermal expanders. One embodiment has an isothermal compressor that compresses air (or other gas), passes the air through a counter-flow heat exchanger, which heats the air, uses the heated air to drive an isothermal expander for power generation, and transfers the expander exhaust back through the counter-flow heat exchanger to heat the input air to the expander. Another embodiment has a boiler that produces vapor that flows through a counter-flow heat exchanger to superheat the vapor. The vapor then flows through an isothermal expander for power generation. The exhaust from the isothermal expander flows back through the counter-flow heat exchanger to supply heat to the vapor coming from the boiler and then flows through another heat exchanger that preheats the feed liquid flowing to the boiler.

10-30-2008

20090241546

Increasing power of steam plant with refrigerant cooled condenser at peak loads by using cooling thermal storage - A steam powered power plant and method of cooling a steam powered plant. A boiler provides steam to turbine and the turbine drives a generator to produce power. Exhaust steam from the turbine is cooled in a condenser and returns to the boiler. A first dry refrigeration cycle uses a first compressor to compress a first flow of refrigerant and the compressed flow of refrigerant rejects heat to the surrounding through an air cooled condenser and is then expanded in the steam condenser to cool the exhaust steam. A second refrigeration cycle includes a second compressor used to compress a second flow of refrigerant and the second flow of refrigerant is cooled in an air cooled condenser and is expanded to cool water in a storage tank wherein the stored water can be used to cool the condenser and exhaust steam during a peak load condition of the power plant.

10-01-2009

20090211254

DRIVE TRAIN OF A MOTOR VEHICLE WITH A COMPRESSED-AIR SYSTEM - A drive train for a motor vehicle includes: a vehicle drive engine for driving the motor vehicle via a vehicle drive shaft driven by a vehicle drive engine; and a compressor which can be driven optionally or permanently for compressing air for a compressed-air system of the motor vehicle. The compressor is associated with at least one drive unit in the form of a steam-driven expansion machine by which the compressor can be driven.

08-27-2009

20090199559

External combustion engine - An external combustion engine alternately repeating a first stroke of making a working fluid evaporate at a plurality of heating portions and making a liquid phase part of the working fluid displace toward an output part side and a second stroke of making the working fluid evaporated at the first stroke condense at the plurality of cooling portions and making the liquid phase part of the working fluid displace toward the side of the plurality of the heating portions and provided with inflow adjusting means for reducing differences in inflows among the plurality of the heating portions, wherein the inflow is defined as the amount of a liquid phase part of the working fluid flowing into the heating portions when the liquid phase part of the working fluid displaces from the output part side to the side of the plurality of the heating portions in the second stroke.

08-13-2009

20090199558

EXHAUST STACKS AND POWER GENERATION SYSTEMS FOR INCREASING GAS TURBINE POWER OUTPUT - An exhaust stack having a junction tube and a flue is provided. The flue has a silencer portion, a converging duct portion, a tubular portion, and a diverging diffuser portion. The silencer portion fluidly communicates with the junction tube. The silencer portion has a first hydraulic mean cross-sectional flow path, and the tubular portion has a second hydraulic mean cross-sectional flow path less than or equal to the first hydraulic mean cross-sectional flow path. The converging duct portion is coupled between the silencer portion and the tubular portion. The diverging diffuser portion is coupled to an end of the tubular portion opposite to the converging duct portion, such that exhaust gases flowing through the junction tube, the silencer portion, the converging duct portion, the tubular portion and the diverging diffuser portion have a reduced overall pressure drop, at least in part due to the diverging diffuser portion and the second hydraulic mean cross-sectional flow path being less than or equal to the first hydraulic mean cross-sectional flow path.

08-13-2009

20140174086

HEAT ENGINE SYSTEM - An improved heat engine is disclosed. The heat engine comprises at least one heat pipe containing a working fluid flowing in a thermal cycle between vapor phase at an evaporator end and liquid phase at a condenser end. Heat pipe configurations for high-efficiency/high-performance heat engines are disclosed. The heat pipe may have an improved capillary structure configuration with characteristic pore sizes between 1μ and 1 nm (e.g. formed through nano- or micro-fabrication techniques) and a continuous or stepwise gradient in pore size along the capillary flow direction. The heat engine may have an improved generator assembly configuration that comprises an expander (e.g. rotary/turbine or reciprocating piston machine) and generator along with magnetic bearings, magnetic couplings and/or magnetic gearing. The expander-generator may be wholly or partially sealed within the heat pipe. A heat engine system (e.g. individual heat engine or array of heat engines in series and/or in parallel) for conversion of thermal energy to useful work (including heat engines operating from a common heat source) is also disclosed. The system can be installed in a vehicle or facility to generate electricity.

06-26-2014

20140250890

AIR COOLED CONDENSER AND POWER GENERATING APPARATUS PROVIDED WITH THE SAME - Disclosed are an air cooled condenser capable of preventing air from being mixed into a working medium flow path, and a power generating apparatus including the air cooled condenser. The air cooled condenser includes a heat exchanger for air-cooling a working medium indirectly through a wall, a fan, a sensor for measuring a pressure value of the working medium at an outlet of the heat exchanger, and a controller for controlling the rotating speed of the fan such that the pressure value obtained by the sensor comes closer to a target value set to be equal to or larger than an atmospheric pressure.

09-11-2014

20140250888

HEAT EXCHANGERS, BOILERS, AND SYSTEMS INCORPORATING THE SAME - A heat exchanger includes an enclosure having a separator disposed therein that divides the heat exchanger into a mixing area and a heat exchange area. The mixing area is configured to receive a hot fume and droplets of a liquid for mixing with each other to form a fume-droplet vapor mixture. The mixture is configured to flow through orifices of the separator into the heat exchange area. A plurality of magazines is disposed within the heat exchange area of the first enclosure. Each magazine defines a cavity. The cavities are disposed in communication with one another. A lower-most magazine is configured to receive a receiver medium that is pumped through the cavity of each successive magazine to an upper-most magazine. The mixture is configured to circulate about the magazines to incrementally heat the receiver medium as the receiver medium is pumped through the cavity of each successive magazine.

09-11-2014

20090260361

ISOTHERMAL POWER SYSTEM - This invention provides means for producing power by using isothermal compressors and isothermal expanders. One embodiment has an isothermal compressor that compresses air (or other gas), passes the air through a counter-flow heat exchanger, which heats the air, uses the heated air to drive an isothermal expander for power generation, and passes the expander exhaust back through the counter-flow heat exchanger to heat the input air to the expander. Another embodiment has a boiler that produces vapor that flows through a counter-flow heat exchanger to superheat the vapor. The vapor then flows through an isothermal expander for power generation. The exhaust from the isothermal expander flows back through the counter-flow heat exchanger to supply heat to super heat the vapor coming from the boiler. The description presents several devices that can perform at near isothermal conditions, including a modified Tesla turbine.

10-22-2009

20110056203

Method for recuperating energy from an exhaust gas flow and motor vehicle - In a motor vehicle with an internal combustion engine providing a hot exhaust gas flow which is used as heat source for a Clausius-Rankine cycle process, wherein a pump is provided in the cycle for pumping, pressurizing and circulating an operating fluid, the pumping operation is controlled by a controller depending on the exhaust gas mass flow through an evaporator and possibly also the exhaust gas temperature to vaporize the operating fluid and expanding the vapor under pressure in an expander while generating energy. The vapor is condensed in a condenser to form a condensate which is again returned to the pump.

03-10-2011

20110056202

Method for recovering heat losses of an internal combustion engine - In a method for recovering energy from the heat dissipated by an internal combustion engine wherein the pressure and temperature of a liquid working medium are increased from a lower process pressure and a first temperature to an upper process pressure and a second temperature by a pump unit; the working medium is heated from the second temperature to a third temperature by transferring heat from a hot medium containing heat dissipated by the internal combustion engine to the working medium, which is thereby converted from a liquid phase to a gaseous phase; the working medium is then expanded to the lower process pressure whereby mechanical power is generated and the working medium is converted from a gaseous phase to a liquid phase and transferred back to the pump unit, the upper process pressure is adjusted in such a way that the working medium is expanded at least approximately to a predetermined saturated steam limit and to an internal combustion engine for carrying out the method.

03-10-2011

20120291436

STEAM GENERATION SYSTEM - A steam generation system delivers heats water and carbon dioxide at high temperatures in the presence of one or more plasma arc torches and converts the materials into hydrogen and carbon monoxide. The converted gas is delivered to a heat recovery steam generator (“HRSG”) to produce steam, which may be used to power a steam turbine. Depending on the amount of steam and/or power desired, the system may use a control system to vary the flow, temperature and pressure of the gas delivered to the HRSG. The control system may do this by bringing additional torches on-line or off-line in the processing chamber, by adding unheated gas directly from a supply source, shunting the gas from the HRSG, and varying the flow of water delivered to the HRSG.

11-22-2012

20140250889

RANKINE CYCLE - A Rankine cycle includes a refrigerant pump, a heat exchanger, an expander and a condenser. The Rankine cycle further includes a clutch provided in a power transmission path extending from an engine to the refrigerant pump. Prior to the operation of the Rankine cycle and during the deceleration of the vehicle, the clutch is fastened and the refrigerant pump is driven with use of the vehicle inertia force.

09-11-2014

20090301090

WORKING MEDIUM FOR HEAT CYCLE - To provide a working medium for heat cycle less influential to environment and excellent in heat cycle characteristics, and a Rankine cycle system, a heat pump cycle system and a refrigerating cycle system having high capacity and efficiency.

12-10-2009

20110107762

STEAM-JET ENGINE - A steam engine in which a liquid and a steam are jetted so that a rotor is turned by the reaction thereof, and the rotor having a well-balanced simple structure. In the steam engine, the rotor

05-12-2011

20110239650

POWER PLANT COMPRISING A TURBINE UNIT AND A GENERATOR - A power plant including a turbine unit having a turbine, a generator connected to the turbine for power transmission, and a cooling device for cooling the generator is provided. The cooling device is provided to release waste heat from the generator to a device of the power plant. Waste heat may be used in the power plant process, thus attaining increased efficiency.

10-06-2011

20100192574

Power compounder - A power compounder system and method is disclosed, wherein the system includes a prime mover producing waste heat and a power compounder coupled to the prime mover. The power compounder includes a. working fluid configured to receive thermal energy from the waste heat, a working fluid collector to hold the working fluid, an evaporator fluidly coupled to the working fluid collector for transferring the waste heat to the working fluid to change the working fluid to a vapor working fluid, a feed pump to cause the working fluid to flow between the working fluid collector and the evaporator, a double screw expander fluidly coupled to the evaporator to receive the vapor working fluid to create rotational mechanical energy, where the double screw expander is associated with the prime mover via at least one of a mechanical clutch, an electrical clutch and a sprag clutch.

08-05-2010

20090031727

External combustion engine - An external combustion engine includes: a main container sealed with a working fluid in a liquid state adapted to flow; a heater for heating a portion of the working fluid in the main container and generating the vapor of the working fluid; a cooler for cooling and liquefying the vapor; an output unit for outputting by converting the displacement of the liquid portion of the working fluid generated by the volume change of the working fluid due to the generation and liquefaction of the vapor into mechanical energy; and an auxiliary container communicating with the main container. The heater, the cooler and the output unit are arranged in order, in the direction of displacement of the working fluid. The working fluid is sealed in the auxiliary container which communicates with the portion of the main container nearer the output unit than the cooler. The engine further includes a communication area adjusting unit for establishing communication between the main container and the auxiliary container with a first communication area in normal operation mode and with a second communication area larger than the first communication area at the time of engine start. Thus, a predetermined output is produced quickly after engine start.

02-05-2009

20110146280

SYSTEM AND METHOD FOR HEATING FEEDWATER USING A SOLAR HEATING SYSTEM - An embodiment of the present invention may take the form of a system and method that may use at least at least one solar heating system to heat the feedwater consumed by a boiler. An embodiment of the present invention may incorporate concentrated solar power (CSP). Generally, CSP systems incorporate a plurality of lenses, mirrors, or combinations thereof and a tracking system to focus a large area of sunlight forming a small concentrated beam of light. The concentrated light may then be used as a heat source. In an embodiment of the present invention, the heat source may be used to partially or completely heat the feedwater consumed by a boiler. CSP systems may take the form of a solar trough system, a parabolic dish system, a solar power tower system, or the like.

06-23-2011

20140026577

HEAT EXCHANGER - A heat exchanger and a method are provided to vaporize a working fluid using a heat sourcing fluid. The heat exchanger includes a first section, a second section, and a third section. A first portion of the heat sourcing fluid passes through the first section, in counter-flow with the working fluid. A second portion of the heat sourcing fluid passes through the second section, in co-flow with the working fluid. Both the first and second portions pass through the third section, in overall counter-flow with the working fluid. The working fluid passes sequentially through the third section, the first section, and the second section. The heat exchanger and/or the method may be used in a Rankine cycle for waste heat recovery or in a refrigerant cycle.

01-30-2014

20140026576

Apparatus and Method for Reheating Turbine Steam - The invention relates to an apparatus and a method for reheating turbine steam, comprising a reheater and a condensate collecting tank, into which condensate is guided from the reheater. A subcooler is provided upstream of the reheater in a common housing with the reheater. The subcooler is arranged beneath the reheater and the condensate collecting tank is connected with the subcooler in order to supply condensate from the condensate collecting tank as heating medium.

01-30-2014

20120266596

STEAM TURBINE PLANT - A steam turbine plant of one embodiment includes a boiler to change water into steam, an upstream turbine including plural stages of rotor vanes and plural stages of stator vanes and to be driven by the steam from the boiler, a downstream turbine including plural stages of rotor vanes and plural stages of stator vanes and to be driven by the steam from the upstream turbine, a condenser to change the steam exhausted from the downstream turbine into water, a collector to collect water from, for example, the steam which exists upstream of an inlet of the final-stage rotor vane in the upstream turbine, and a collected matter path to cause collected matter in the collector to flow into, for example, the steam between an outlet of the final-stage rotor vane of the upstream turbine and an inlet of the final-stage rotor vane of the downstream turbine.

APPARATUS AND METHOD FOR LIQUEFIED NATURAL GAS CARRIER PROPULSION - Disclosed herein is an apparatus and method for liquefied natural gas (LNG) carrier propulsion. In the apparatus and method, the propulsion of an LNG carrier is done by only a single main diesel engine and has construction to promptly cope with emergencies caused by malfunction of the main diesel engine. The propulsion apparatus for an LNG carrier comprising a boil-off gas re-liquefaction apparatus for re-liquefying boil-off gas generated in LNG storage tanks to return re-liquefied boil-off gas back to the LNG storage tank comprises a single main diesel engine, a propulsion shaft separably connected to the main diesel engine, and an electric motor for propulsion separably connected to the propulsion shaft and supplied with power intended for operation of the boil-off gas re-liquefaction apparatus.

Hybrid electric steam turbine automotive engine - The Hybrid Electric Steam Turbine Automotive Engine is a new and useful type of engine which does not require the internal combustion of Petroleum-Based fuels. The stainless steel casting engine operates on either petroleum-based or non-petroleum-based fuels and will eliminate dependence upon petroleum-based fuel. It will reduce adverse environmental impacts caused by emissions of Green House Gases.

10-14-2010

20110041506

ADIABATIC EXPANSION HEAT ENGINE AND METHOD OF OPERATING - In an adiabatic expansion heat engine, adiabatically expanded low pressure fluid is returned to a source of high pressure fluid through a balance of internal pressures or forces that balances out the resistance to the flow of the fluid being pumped from the low pressure to the high pressure with the high pressure fluid metered into the working chamber.

TIP FLOWPATH CONTOUR - An apparatus is provided and includes a turbine including a casing and a turbine bucket having a tip proximate to the casing and a trailing edge defined relative to a direction of fluid flow through the turbine and a diffuser, defined between a central surface and a downstream section of the casing, which is fluidly coupled to the turbine and disposed downstream from the trailing edge, a slope of the downstream section of the casing being angled by at least 6 degrees relative to a slope of the tip within about 0.5 turbine bucket chord lengths as measured at the tip from the trailing edge, and the central surface and the downstream section of the casing being at least substantially parallel or divergent from the trailing edge.

02-23-2012

20120060502

Clausius-Rankine cycle - In a Clausius-Rankine cycle, in particular for mobile applications, comprising a pump for circulating a liquid working fluid in the Clausius-Rankine cycle and pressurizing the working fluid, a heating device for vaporizing the pressurized liquid working fluid and an expansion device for generating mechanical driving power by expanding the hot, compressed vaporized working fluid, a condenser device for condensing the hot, expanded vaporized working fluid is provided to form again liquid working fluid and the condenser device includes integrated therein a collection volume for collecting and storing liquid working fluid.

03-15-2012

20080271454

Steam powered engine - A steam powered engine system wherein hot exhaust gas produced by a small secondary engine is used to heat water to a temperature above 212 degrees F., the superheated water being injected into a cylinder containing hot compressed gas. The water then flash expands into steam to drive a piston. The hot exhaust gas from the secondary engine is further utilized to scavenge spent gas and liquid from the cylinder during the return stroke of the piston, as well as to maintain a suitably high temperature within the cylinder.

11-06-2008

20090217666

Rankine engine with efficient heat exchange system - The Rankine engine with efficient heat exchange system provides a rapidly rechargeable thermal energy storage bank operably connected to a heat engine capable of propelling a vehicle. Microwave energy is supplied to the system via a network of waveguides. Thermal storage bank has a slurry in a heat exchanger capable of sustaining operation of the engine without requiring the microwave source. The slurry provides a mixture of powdered stainless steel and silicone oils functioning as the working fluid in the hot side of the heat exchanger. The slurry may be heated by plugging the system into standard AC power for a predetermined microwave heat charging duration. A closed, triple-expansion, reciprocating Rankine cycle engine capable of operating under computer control via a high pressure micro-atomized steam working medium is provided to propel the vehicle. A variety of working fluids are capable of powering the Rankine cycle engine.

09-03-2009

20110209480

ROTARY COMPRESSOR-EXPANDER SYSTEMS AND ASSOCIATED METHODS OF USE AND MANUFACTURE - The present technology is directed generally to rotary displacement systems and associated methods of use and manufacture. The systems can be used to compress and/or expand compressible fluids. In some embodiments, the rotary displacement systems include a chamber housing having a pressure-modifying chamber with a first port and a second port, a first passageway in fluid communication with the chamber via the first port, and a second passageway in fluid communication with the chamber via the second port. The systems can further include a shaft positioned within the chamber housing and rotatable relative to the chamber housing about a rotational axis, and a rotor comprising no more than two lobes. The rotor can be carried by and rotatable relative to the shaft, and can be alternately operable in a first mode in which flow is provided from the first passageway to the second passageway via the chamber and in a second mode in which flow is provided from the second passageway to the first passageway via the chamber.

09-01-2011

20120102955

Thermal Power Plant - A thermal power plant is proposed for achieving high reliability, low material cost, and low construction cost by devising the arrangement and structures of a boiler, steam turbines, and a flue gas treatment apparatus to reduce a usage amount of high-temperature resistance material and further to reduce a thermal elongation of piping. In a thermal power plant including a 2 pass-type boiler having a furnace for burning fuel, a rear heat recovery area for recovering heat from combustion gas exhausted from the furnace, steam turbines are arranged near the rear heat recovery area.

SYSTEMS, APPARATUSES, AND METHODS OF HARNESSING THERMAL ENERGY OF GAS TURBINE ENGINES - One embodiment according to the present invention is a unique system for harnessing thermal energy of a gas turbine engine. Other embodiments include unique apparatuses, systems, devices, and methods relating to gas turbine engines. Further embodiments, forms, objects, features, advantages, aspects, and benefits of the present invention shall become apparent from the following description and drawings.

ENERGY TRANSFER SYSTEM COMPRISING A PHASE CHANGE MATERIAL - An energy transfer system for absorbing, temporarily storing and releasing energy is disclosed. The described energy transfer system comprises (a) a first container containing a Phase Change Material, (b) a heat generation element, which is connectable to an external energy source and which is capable of charging the Phase Change Material with thermal energy, wherein energy provided by the external energy source is used, and a heat extraction element, which is connectable to an external heat engine and which is capable of extracting thermal energy from the Phase Change Material, wherein the external heat engine is capable of converting the extracted thermal energy into electric energy. It is further described an energy transfer arrangement comprising two of such energy transfer systems, and a method for absorbing, temporarily storing and releasing energy.

09-15-2011

20100154420

Rotary displacement steam engine - A steam engine of a simple constitution capable of efficiently obtaining mechanical energy not only from a heat source of a high temperature but also from various heat sources in a low-temperature state such as the exhaust heat of an internal combustion engine. The engine comprises a displacement engine

06-24-2010

20100205968

Method for operating a combustion system and combustion system - A combustion system with a burner and a membrane unit including a retentate side and permeate side for separating oxygen from air is provided. The permeate side of the membrane unit is connected to the burner via a line. A heat exchanger is connected in a combustion gas flow such that a hot combustion gas arising from fossil combustion is applied to the primary side of the heat exchanger and air applied to the secondary side of the heat exchanger is heated to a temperature required for operating the membrane unit and fed to the membrane unit. Further, a method for operating the combustion system is provided.

Turbine Nozzle Blade and Steam Turbine Equipment Using Same - Disclosed is a highly efficient turbine nozzle blade that reduces the number of blades in an axial-flow turbine while reducing secondary-flow loss. In the nozzle blade, when a differential pressure between a pressure side and a suction side of each blade, at the same axial chord position of the blade, is defined as a load of the blade, and a ratio between axial chord length “Cx” of the blade and an axial distance “xp” from a leading edge of the blade at a maximum load position that maximizes the blade load is defined as a maximum load relative position, Cx is greater at a hub and tip than at an intermediate vertical portion, and simultaneously a maximum load relative position at the hub and tip is set to be nearer to a trailing edge thereof than a maximum load relative position of the intermediate vertical portion of the blade.

08-23-2012

20100050638

LOW-PRESSURE-VAPOR-RECOVERY TURBINE GENERATOR - A low-pressure-vapor-recovery turbine generator that effectively recovers low-pressure steam emitted from a high-pressure-side steam turbine to generate electric power is provided. A low-pressure-vapor-recovery turbine that recovers low-pressure steam emitted from a high-pressure-side steam turbine and is rotationally driven, a generator that generates electric power with a rotational output of the low-pressure-vapor-recovery turbine, and a condenser that condenses into liquid exhaust steam from the low-pressure-vapor-recovery turbine are provided. The low-pressure-vapor-recovery turbine, generator, and condenser are installed in a portable outer casing that can be transported.

03-04-2010

20120255304

Apparatus and Method for Generating Power and Refrigeration from Low-Grade Heat - An apparatus and a method generate power and refrigeration from low-grade heat. The apparatus includes a heating module, a power generator module, an ejector, a heat exchanger, a condenser module, a low-temperature evaporator, a reservoir, a pressure pump and two direction controllable three-way valves. The heating module includes a heat source and a boiler. The power generator module includes an expansion turbine and a power generator. The condenser module includes a condenser and a cooling tower. The method is that the direction controllable three-way valves are operated to change the flow directions of the working fluid for executing a power generation and refrigeration mode, a power generation mode, a refrigeration mode or an idle mode.

APPARATUS FOR STEAM ATTEMPERATION USING FUEL GAS HEATER WATER DISCHARGE TO REDUCE FEEDWATER PUMP SIZE - Attemperation systems and methods for cooling steam bypassed from a steam turbine during tripping of the steam turbine are provided in the disclosed embodiments. The systems may be configured to deliver water discharged from a fuel gas heater to a bypass attemperator, where the water discharged from the fuel gas heater may be used to cool the bypass steam. Before being used by the fuel gas heater, the water used to heat the fuel gas may be heated by an economizer. The water may be delivered to the economizer by an intermediate pressure stage of a boiler feedwater pump. In the disclosed embodiments, the intermediate pressure stage of the boiler feedwater pump may also be used to supply water to a re-heater attemperator, which may be used to further cool the steam after it has been delivered from the bypass attemperator to a re-heater. In addition, the intermediate pressure stage of the boiler feedwater pump may deliver water directly to the bypass attemperator as a supplemental water source.

04-08-2010

20110265478

THERMOCHEMICAL THERMODYNAMICS CONTINUOUS CYCLE MACHINE - It is a thermodynamics machine carrying heat from T1 cold heat source to T2 hot heat source without using any energy operating contrary 0. law of thermodynamics or it is thermodynamics machine operating by using atmosphere heat using single heat source contrary 2. law of thermodynamics. Continuous cycle is combinated chemical reaction system in which A+BAB format homogeneous chemical reaction is controlled with having partner B component B+C→BC format mono direction chemical reaction. United chemical reaction system are continuous cycle, because heat of homogeneous reaction is bigger than direction reaction heat and this heat is used for the decomposition of mono direction reaction or never used heat for decomposition of mono direction reaction.

11-03-2011

20110265479

SYSTEM FOR STEAM PRODUCTION FOR ELECTRIC POWER GENERATION - A system for steam production for electric power generation may include an electrode boiler. The electrode boiler is configured to provide overheated steam. A steam turbine is coupled to the electrode boiler and is driven by the overheated steam. An electrical generator is coupled to the steam turbine to convert the kinetic energy of the steam turbine to electrical power.

11-03-2011

20120324892

Power System Driven By A Low-Temperature Heat Source - A power system driven by a low-temperature heat source includes a power cycling unit and a heat pump unit. The power cycling unit includes a turbine, a condenser, a pump, a first heat exchanger, and a second heat exchanger. The turbine, the condenser, the pump, the first heat exchanger, and the second heat exchanger are connected in sequence. The heat pump unit includes a condenser and an evaporator. The condenser of the heat pump unit is connected to the second heat exchanger. The evaporator is connected to the condenser of the heat pump unit. The evaporator absorbs heat of a working fluid in a waste heat pipe.

STEAM VALVE DEVICE AND STEAM TURBINE PLANT - In the embodiment, a steam valve device has, a steam regulating valve, and an intermediate flow path connecting the main steam stop valve and the steam regulating valve. The main steam stop valve and the steam regulating valve respectively have: casings where flow paths are formed between horizontal inlet ports and outlet ports opened downward and valve seats are arranged in the flow paths; valve elements movable up and down in the casings; and valve rods for driving the valve elements. The valve rods extend upward, and they are pulled off upward in a direction to outside of the casings when opening the flow paths. The intermediate flow path changes the flow direction of main steam flowing out of the outlet port of the main steam stop valve from downward direction to horizontal direction to guide the main steam toward the outlet ports of the steam regulating valves.

09-27-2012

20140123648

STEAM-DRIVEN ELECTRIC GENERATING SYSTEM - A system for generating electricity including a water storage tank coupled to a heat exchanger and an oxygen generator. The oxygen generator separates water into oxygen and hydrogen and flows each element to the heat exchanger. The heat exchanger includes a fuel cell and a tube that water flows through adjacent the fuel cell. The operation of the fuel cell results in a by product of heat. The heat from the fuel cell is then transferred to water flowing through the tube and the water is converted to steam. The steam drives a turbine generator to produce electricity. The fuel cell generates water in its processing that is returned to the water storage tank.

SYSTEMS AND METHODS FOR REDUCING PARASITIC LOSSES IN CLOSED LOOP SYSTEMS - Embodiments of a system that configured as a closed loop system, with a pump, an evaporator, a power generator, and a condenser, the combination of which circulate a working fluid to generate electrical power. The embodiments can harvest residual energy in the working fluid to improve efficiency and to reduce power loss that can derive from the pump as well as other auxiliary loads (e.g., fans). In one embodiment, the system incorporates members that operate in response to the working fluid, often in the higher pressure vapor form that occurs after evaporation and/or power generation stages. These members can include mechanical elements, for example, that have motive action (e.g., reciprocate, rotate, etc.) that is useful to satisfy operating and power requirements of auxiliary loads. For the pressurization stage, these mechanical elements may embody a piston-and-cylinder arrangement (or other rotary or linear positive displacement arrangement) that generates motion that can drive the pump.

12-25-2014

20080216480

Internal combustion engine with auxiliary steam power recovered from waste heat - A combination internal combustion and steam engine includes a cylinder having a piston mounted for reciprocation therein with an internal combustion chamber and a steam chamber in the cylinder adjacent the piston and at least one steam exhaust port positioned to communicate with the steam chamber through the wall of the cylinder for exhausting steam at a location in the cylinder wall adjacent to an engine cylinder cap surface that is heated externally to assist in reducing chilling or condensation of steam entering the steam chamber from a boiler fired by waste combustion heat. The invention also permits steam admitted from a steam chest jacketing the cylinder cap to be exhausted from the engine when the steam chamber is in an expanded state whereupon residual steam is then recompressed prior to admitting the next charge of steam with the stream in the steam chamber being heated directly by the combustion chamber as well as by heat from the steam chest. An I.C. exhaust powered heater is a part of an I.C. exhaust manifold which functions as an afterburner with supplemental air injection for promoting combustion of unburned exhaust constituents to superheat steam that is piped through it to the steam chest. The invention provides valves for balancing steam engine displacement with boiler output and for cylinder compounding with a boiler, heat exchange and control arrangement for efficiently recovering waste heat.

09-11-2008

20140373544

COOLING SYSTEM AND COOLING METHOD FOR USE WITH CLOSED LOOP SYSTEMS - Embodiments of systems that are configured as a closed loop system with a pump, an evaporator, a power generator, and a condenser, the combination of which circulates a working fluid to generate electrical power. The embodiments are configured with a cooling system that can depress the local pressure at or near components that are the target of cooling, which in turn permits the cooling fluid to function at temperatures that can remove heat, even when the ambient temperature rises above desirable levels. In one embodiment, the system is configured with an ejector device that can use energy of the working fluid F in vapor phase to lower the pressure in a housing, or like environment, that encloses critical elements of the generator.

12-25-2014

20100275600

SYSTEM AND METHOD OF RECOVERING HEAT AND WATER AND GENERATING POWER FROM BITUMEN MINING OPERATIONS - A method recovering heat and water from a warm slurry, such as warm tailings from a oil sands extraction mining operation, is provided. The method comprises providing the tailings to a vacuum vessel, removing, from the vacuum vessel, warm vapor derived from the tailings, condensing the warm vapor in a condenser to produce water, and recovering the water from the condenser. Cool river or pond water can be warmed with the heat from the vapor for additional uses in the mining operation. Essentially pure water can be obtained in the process. This can also be achieved using one or flash vessels in series to condense the vapor. Power can also be generated from the vapor using a turbine.

11-04-2010

20150121876

EXHAUST HEAT RECOVERY APPARATUS, HEATING SYSTEM, STEAM BOILER, AND DEODORIZATION SYSTEM - An exhaust heat recovery apparatus includes an exhaust heat passage through which a first heat medium holding exhaust heat flows; a second heat medium passage through which the second heat medium, of which temperature is lower than that of the first heat medium, flows; a Rankine cycle which includes a pump, an evaporator, an expander, and a condenser and causes heat exchange at the evaporator between the first heat medium flowing through the exhaust heat passage and a working fluid, so that the working fluid is evaporated, the evaporated working fluid expands at the expander, and power is generated; and an exhaust heat recovery heat exchanger which causes heat exchange between the first heat medium flowing through the exhaust heat passage and the second heat medium flowing through the second heat medium passage, so that the second heat medium is heated and exhaust heat of the first heat medium is recovered.

05-07-2015

20150121875

STEAM GENERATION - A steam generator for generating a superheated fluid from a working fluid using a stream of heated gas, the steam generator comprising: a housing, which defines a gas flow path having an inlet at one, upstream end thereof into which a stream of heated gas is delivered and an outlet at the other, downstream end thereof; and a steam generation module which is disposed within the gas flow path of the housing, the steam generation module comprising a heat exchanger which receives a working fluid and is operative to raise the temperature of the working fluid to provide a saturated fluid, and a superheater which receives the saturated fluid from the heat exchanger and is operative to raise the temperature of the saturated fluid and provide a supersaturated fluid.

TURBINE EXHAUST ARRANGEMENT - An exhaust arrangement for a turbine is provided having an inner turbine casing, a condenser, an exhaust arrangement structure, and a bearing cone. The inner turbine casing includes a plurality of last stage buckets. A steam flow passes through the inner turbine casing and out of the plurality of last stage buckets. The condenser for receives the steam flow. The exhaust arrangement structure has a diffuser, a lower section and an upper section. The lower section has an exhaust section. The lower section receives the steam flow from the last stage buckets of the inner turbine casing through the diffuser and guides the steam flow out of the exhaust section in a direction generally towards the condenser. The upper section has a receiving section and a guiding section.

01-24-2013

20080250790

HIGH-TEMPERATURE STEAM TURBINE POWER PLANT - A high-temperature steam turbine plant is of the top turbine type and structured as follows. It comprises a boiler building including a vertical boiler on the top of which a VHT turbine is installed; and a turbine building installed on the ground as a base. The VHT turbine and a generator connected with it are installed on the top of the boiler. The material for the portion of the steam pipe between the boiler building and the turbine building which is exposed to highest steam pressure is austenite steel which contains 50 weight % or more of ferrite steel or Fe. The inlet temperature of the VHT turbine is 675° C. or more and its outlet temperature is 550° C. or more and 650° C. or less.

THERMAL POWER PLANT - By improving a turbine efficiency, a power generation efficiency can be easily improved. The thermal power plant of the present invention comprises, for example: a boiler

10-09-2008

20100154421

RANKINE SYSTEM WITH GRAVITY-DRIVEN PUMP - A gravity-driven pumping unit has an inlet valve connected to a condenser, an outlet valve connected to a boiler, and a staging zone between the inlet and outlet valves. The inlet valve, the outlet valve, the liquid line and entire path established between the condenser and boiler are oriented, sized and shaped to allow for the vapor refrigerant to freely move upward from the boiler to the condenser and to allow for the liquid refrigerant to freely drain downwards from the condenser to the boiler by gravity. A control system opens and closes the inlet and outlet valves in a proper sequence, which enables gravity-driven movement of liquid refrigerant from the condenser to the staging zone and then from the staging zone to the boiler, against a positive pressure differential between the boiler and condenser.

Combined Cycle System Employing Phase Change Material - In one embodiment, a component for a power generation system includes an interior volume for containing steam condensate or gas turbine exhaust gas. A phase change material is disposed around an external surface of the combined cycle power generation system component.

07-07-2011

20100107637

Waste heat engine - An engine includes a radial arrangement of cylinders each having a reciprocating piston with a piston head and a connecting rod pivotally linked to the piston head at an upper end. A lower end of each connecting rod is pivotally linked to a crank disk that is rotatably mounted on a crank arm of a crankshaft. Steam intake valves at each cylinder are momentarily opened by a bearing cam roller that is moved in a circular path by rotation of the crank disk to sequentially engage spring urged cam followers on inboard ends of radially extending valve stems. Low pressure steam or gas is injected into the top of each cylinder, as the intake valves of the cylinders are opened in sequence, thereby forcing the piston in each cylinder through a power stroke to move the crank disk and turn the crankshaft. Angular displacement of each connecting rod through the return stroke of the piston urges an exhaust reed valve on the piston head to an open position, thereby releasing exhaust steam to a condenser chamber. The engine is self-starting and operates in a low pressure, low temperature range, using waste heat from an external source, such as exhaust from an internal combustion engine, burning of refuse (e.g. garbage or other solid waste material) or solar heat.

MOISTURE SEPARATOR REHEATER AND NUCLEAR POWER PLANT - One embodiment of a moisture separator reheater includes: heater headers that supply the heating fluid to heat transfer tube groups for heat exchange with the steam; partition plates that guide the steam from a moisture removal section to the heat transfer tube group and then to the heat transfer tube group. The heat transfer tube groups each includes a plurality of heat transfer tubes each having a forward passage part, a backward passage part, and a bent tube part. The forward and the backward passage parts extend in a longitudinal direction of a body drum and the bent tube part connects the forward and the backward passage parts. The bent tube pipe is provided outside end plates.

Vehicle Propulsion System - A vehicle propulsion system has a sealed, closed loop steam generating system connected to supply steam to drive a small turbine that drives an alternator or generator to produce electrical energy that is supplied to electric traction motors at the wheels of the vehicle to propel the vehicle. According to some of the embodiments, a cooling coil is associated with the steam generating system to facilitate complete and rapid condensing of the steam back to water. At least one battery is connected in the system to supply electrical energy during start up and as otherwise needed. A controller such as a CPU or PC Main Board is connected with the propulsion system to regulate and control distribution of electrical energy to components of the system.

06-28-2012

20120285170

RANKINE CYCLE APPARATUS - The present invention provides a Rankine cycle apparatus that is mounted in a vehicle and includes a Rankine cycle circuit and a refrigeration cycle circuit. The Rankine cycle circuit and the refrigeration cycle circuit each include a condenser for cooling a corresponding type of working fluid and a receiver, which is connected to the condenser. The two condensers are arranged side by side in the upward-downward direction and each have a first end and a second end in the vehicle width direction. A first receiver, which is one of the receivers, is arranged outward of the first end in the vehicle width direction. A second receiver, which is the other one of the receivers, is located outward of the second end in the vehicle width direction.

11-15-2012

20100089061

START-UP SYSTEM MIXING SPHERE - A start-up system mixing element including; a body defining a cavity, a first inlet port disposed in the body and configured to provide a first fluid to the cavity, a second inlet port disposed in the body and configured to provide a second fluid to the cavity, an outlet port disposed in the body and configured to remove the first and second fluids from the cavity and an internal distribution pipe disposed in the first inlet port, wherein the internal distribution pipe is configured to provide the first fluid to the cavity via a plurality of holes directed toward a center of the cavity.

04-15-2010

20130219893

CENTRIFUGAL COMPRESSOR - A centrifugal compressor comprising an impeller having an input drive, the impeller having an impulse turbine positioned around the periphery of the impeller to be driven by the gas exiting the impeller, the output of the turbine being coupled to the drive of the impeller.

LASER FOR STEAM TURBINE SYSTEM - A steam turbine system uses a laser to instantaneously vaporize water in a nozzle within a turbine. This steam is then used to rotate the turbine. Thus, the turbine system does not require an external boiler. The steam turbine system may be used in either an open system, where the steam passing through the turbine is not condensed and reused, or a closed system, where the steam passing through the turbine is condensed and reused.

02-05-2015

20100293949

APPARATUS FOR RECOVERING ENERGY FROM WATER - Apparatus for recovering energy from water is disclosed. Water is heated by application of electrical energy to heaters and contacting the water with the heaters in a manner and under pressure and temperature conditions such that it is instantaneously converted to gas. Energy in excess of that supplied to the heaters results from the rapid conversion of water to gas.

11-25-2010

20090077971

Method and deivce for the production of superheated steam - The invention relates to a method and an apparatus for the generation of superheated steam. According to the invention, essentially saturated or wet steam is generated in a main vessel in which superheating is technically not possible or only restrictedly possible and which is superheated in an auxiliary plant whereby the superheater of the auxiliary plant is controlled dependent upon the steam production of the main plant.

03-26-2009

20130019601

METHOD AND APPARATUS FOR AN EXTERNAL COMBUSTION ENGINE HAVING A STEAM GENERATOR - Methods and apparatus for a power and/or propulsion system comprising an external combustor, a steam generator, and a radial piston engine. In one embodiment, an undersea vehicle is powered by a propulsion system including a steam generator having a series of coiled tubes in which water is heated to generate steam by combustion of a monopropellant fuel ignited in the external combustor.

01-24-2013

20120067048

Multipurpose Thermal Power Plant System - To provide a multipurpose thermal power plant system capable of capturing moisture and carbon dioxide in large quantities at a low cost from exhaust gas of an oxygen combustion boiler.

03-22-2012

20120151926

Feedwater Heater Control System for Improved Rankine Cycle Power Plant Efficiency - A steam cycle system comprises a boiler comprising a superheat section, a reheat section, and an economizer section, wherein the boiler is configured to receive a feedwater stream; a steam turbine system comprising a high pressure turbine and a lower pressure turbine, wherein the steam turbine system is configured to receive steam generated by the boiler; a condenser configured to receive at least a portion of the outlet steam from the steam turbine system and output the feedwater stream; a high pressure feedwater heat exchanger configured to receive at least a portion of the feedwater stream, allow for an energy exchange between the portion of the feedwater stream and a steam stream, and output the portion of the feedwater stream to the boiler; a steam extraction line configured to provide a steam flow from an outlet of the high pressure turbine to the high pressure feedwater heater; a feedwater temperature control device configured to control the temperature of the feedwater stream by modulating the energy transfer in the high pressure feedwater heat exchanger between the steam flow provided through the steam extraction line and the portion of the feedwater received by the high pressure feedwater heat exchanger.

06-21-2012

20100064688

Hybrid brayton cycle with solid fuel firing - This invention provides a method of converting heat energy to a more usable form using an externally-heated Brayton cycle. Atmospheric air is used with water injection in a thermodynamic cycle that includes compression (

ROTARY CAM RADIAL STEAM ENGINE - The present invention is directed to a Rotary Cam Radial Steam Engine of a single or multiple pistons and cylinders, which are driven lineally by the introduction of pressure from an external source, through a single, centralized rotating valve. The valve has been designed to provide timed introduction of the pressurized gasses into each cylinder at the moment determined to be best for the engine's applied use, and then the same central rotating valve assembly at the appropriate moment opens to allow the used pressure to exhaust it into the atmosphere, or a collection system. The lineal direction of the pistons is then directed outward and onto an external rotating cam which converts the lineal energy into circular rotating energy. The engine can be disassembled for servicing or complete rebuilding and reassembled quickly with use of no tools. With the need for efficient energy generation, there is a growing requirement for a lighter weight, long lasting, economical motors with affordable ease of maintenance to be used on different applications capable using a variety of different power generating sources.

03-29-2012

20100095674

VAPOR POWERED ENGINE/ELECTRIC GENERATOR - The present invention provides a vapor powered apparatus for generating electric power. Embodiments of the present invention include a storage tank containing a working fluid having a boiling point less than 160° F., a heating source that vaporizes at least a portion of the working fluid to provide a working pressure of the vaporized working fluid, and a pressure motor that converts the working pressure of the vaporized working fluid into mechanical motion. The vaporized working fluid exiting the pressure motor is captured, condensed and returned to the storage tank. Preferably, at least some of the components of the apparatus are hermetically sealed by an outer casing.

04-22-2010

20110192164

RANKINE ENGINE WITH EFFICIENT HEAT EXCHANGE SYSTEM - The rankine engine with efficient heat exchange system provides a rapidly rechargeable thermal energy storage bank operably connected to a heat engine capable of use in an electric power generation facility. Microwave energy is supplied to the system via a network of waveguides. Thermal storage bank has a slurry in a heat exchanger capable of sustaining operation of the engine without requiring the microwave source. The slurry provides a mixture of powdered stainless steel and silicone oils functioning as the working fluid in the hot side of the heat exchanger. The slurry may be heated by plugging the system into standard AC power for a predetermined microwave heat charging duration. A closed, triple-expansion, reciprocating Rankine cycle engine capable of operating under computer control via a high pressure micro-atomized steam working medium is provided to propel the vehicle. A variety of working fluids are capable of powering the Rankine cycle engine.

08-11-2011

20130205784

FORCED-FLOW STEAM GENERATOR - A forced-flow steam generator includes first and second steam generator pipes which form a surrounding wall, wherein the first and second steam generator pipes are welded in a gas-tight fashion and are traversable by flow in a vertical direction. A passage collector is arranged within the surrounding wall, wherein the passage collector connects the first steam generator pipes with the second steam generator pipes. The first steam generator pipes are connected at an outlet side to an inlet side of the second steam generator pipes, wherein the second steam generator pipes are connected in series with the first steam generator pipes. Each of the second generator pipes has a restrictor device. Further, a power plant with a forced-flow steam generator is provided.

08-15-2013

20120085098

VAPOR EXPLOSION AND SHOCK WAVE GENERATING DEVICE, MOTOR, AND TURBINE DEVICE - Provided is a device which can reliably generate a vapor explosion. A device which can reliably generate a vapor explosion and shock waves is proposed. This device is provided as an experimental means for research and development of a vapor explosion and shock waves, and paves the way for applications to motors or turbines. A high-temperature liquid (

04-12-2012

20140144137

STEAM GENERATION SYSTEM FOR THERMAL AND RELATED POWER APPLICATIONS USING STOICHIOMETRIC OXYHYDROGEN FUEL STOCK - The invention in the preferred embodiment represents a method of powering any application requiring a motive body of steam in order to produce power, using stoichiometric oxyhydrogen combustion to vaporize a requisite flow of water. The steam-generation process produces water as the sole product of combustion. Applications include providing motive steam for thermal power generation systems within the electric power industry, electric-power generation systems within the railroad locomotive industry, and turbine-driven propulsion systems both water- and aeronautical-based.

05-29-2014

20110203279

COGENERATION DEVICE - Device for improving the production of heat by cogeneration comprising a hot source producing steam which is expanded in a turbine the exhaust of which is connected to an air condenser (

08-25-2011

20130192230

FOSSIL-FUEL-FIRED POWER PLANT - A power plant includes a boiler, a stream turbine generator, a post combustion processing system, a feed water regeneration processing system and a heat exchanger. Heat from the heat exchanger is used to regenerate (a) a reagent that absorbs carbon dioxide from flue gas and (b) a water-lean desiccant used to increase plant operating efficiency.

08-01-2013

20150143809

ENVIRONMENTALLY FRIENDLY AND HIGH EFFICIENCY SOLID FUEL PRODUCTION METHOD USING HIGH-WATER-CONTENT ORGANIC WASTE, AND COMBINED HEAT AND POWER SYSTEM USING SAME - The present invention relates to an environmentally friendly and high efficiency solid fuel production method using high-water-content organic waste, and, more specifically, relates to a solid fuel production method using high-water-content organic waste, the method comprising: (a) a waste mixing step in which high-water-content organic waste and municipal waste are introduced into a Fe-based reactor and mixed; (b) a hydrolysis step in which high temperature steam is added to the reactor and the mixture of organic waste and municipal waste is placed under pressure and is then stirred in the pressurized state so as to hydrolyse the mixture; (c) a pressure-reducing step in which the steam in the reactor is discharged and the inside of the reactor is rapidly reduced in pressure and left to stand in such a way as to give the organic waste from step (b) a low molecular weight or in such a way as to enlarge the specific surface area of the municipal waste from step (b) and thereby break apart same; (d) a vacuum or differential pressure step in which the reactor is placed under vacuum or differential pressure, and the water content of the reaction product from step (c) is removed; and (e) a solid-fuel forming step in which the reaction product from step (d) is subjected to natural drying and compression moulding so as to produce a solid fuel having a water content of between 10 and 20%.

05-28-2015

20150143808

HYBRID TURBINE GENERATION SYSTEM - The present disclosure provides a turbine generation system, including a first turbine part that is configured to have a first impeller rotated by an introduced fluid, and a second turbine part that is configured to have a second impeller rotated by steam, evaporated within a cycle unit, in which the fluid circulates along a rankine cycle, wherein the fluid, which is discharged from the first turbine part after rotating the first impeller, is heat-exchanged with a refrigerant of an evaporator disposed in the cycle unit.

05-28-2015

20110083436

SYSTEMS, APPARATUS AND METHODS FOR THERMAL ENERGY STORAGE, COUPLING AND TRANSFER - Systems, methods, and apparatus relating to the use of phase change material to store, transfer and convert heat, such as from solar radiation, to mechanical work or electricity. Apparatus, systems, components, and methods relating to thermal energy transfer and energy conversion are described herein. In one aspect, the invention relates to a containment vessel having a heat receiving region and a heat transfer region such that a plurality of phase change materials are disposed therein and a sequence of solid, liquid and vapor phases are used to transfer heat from a source to a heat receiver of a power conversion unit.

04-14-2011

20090025390

Low CO2 Thermal Powerplant - A method for generation of electrical power mainly from a coal based fuel, where the combustion gas is separated into a CO

STEAM POWER PLANT HAVING A MULTI-STAGE STEAM TURBINE - A steam power plant includes a multi-stage steam turbine including a rotor and a flow duct formed from a plurality of stages, a boiler, and a first cooling medium supply. The first cooling medium supply opens out into the flow duct of the steam turbine downstream of an intermediate stage. The rotor comprises a first component and a second component. The second component is arranged downstream of the first component as viewed in the flow direction. The intermediate stage is arranged downstream of the first component.

06-05-2014

20140174087

RANKINE CYCLE SYSTEM - A Rankine cycle system includes a refrigerant pump which is mounted on an engine and is configured to feed refrigerant, a heat exchanger which is mounted on the engine and is configured to recover exhaust heat of the engine to the refrigerant, an expander which is mounted on the engine and is configured to convert the exhaust heat recovered to the refrigerant into power by expanding the refrigerant whose temperature has been increased by the heat exchanger, and a condenser which is mounted on a vehicle body and is configured to condense the refrigerant expanded by the expander. The expander and the condenser, and the condenser and the refrigerant pump are connected by flexible pipes having higher flexibility than other pipes.

06-26-2014

20140174085

HEAT ENGINE - An improved heat engine is disclosed. The heat engine comprises at least one heat pipe containing a working fluid flowing in a thermal cycle between vapor phase at an evaporator end and liquid phase at a condenser end. Heat pipe configurations for high-efficiency/high-performance heat engines are disclosed. The heat pipe may have an improved capillary structure configuration with characteristic pore sizes between 1μ and 1 nm (e.g. formed through nano- or micro-fabrication techniques) and a continuous or stepwise gradient in pore size along the capillary flow direction. The heat engine may have an improved generator assembly configuration that comprises an expander (e.g. rotary/turbine or reciprocating piston machine) and generator along with magnetic bearings, magnetic couplings and/or magnetic gearing. The expander-generator may be wholly or partially sealed within the heat pipe. A heat engine system (e.g. individual heat engine or array of heat engines in series and/or in parallel) for conversion of thermal energy to useful work (including heat engines operating from a common heat source) is also disclosed. The system can be installed in a vehicle or facility to generate electricity.

06-26-2014

20140230438

HEAT EXCHANGE SYSTEM - The present invention relates to a heat exchange system comprising:—a single apparatus (N) having an area immersed in a fluid bath (N

08-21-2014

20100018207

Controlled Organic Rankine Cycle System for Recovery and Conversion of Thermal Energy - A system for controlled recovery of thermal energy and conversion to mechanical energy. The system collects thermal energy from a reciprocating engine, specifically from engine jacket fluid and/or engine exhaust and uses this thermal energy to generate a secondary power source by evaporating an organic propellant and using the gaseous propellant to drive an expander in production of mechanical energy. A monitoring module senses ambient and system conditions such as temperature, pressure, and flow of organic propellant at one or more locations; and a control module regulates system parameters based on monitored information to optimize secondary power output. A tertiary, or back-up power source may also be present. The system may be used to meet on-site power demands using primary, secondary, and tertiary power

01-28-2010

20080264061

METHOD AND APPARATUS TO FACILITATE FLUID COMPRESSION - A method of assembling a fluid compression system includes coupling at least one first compression apparatus to a first platform. The method also includes coupling at least one drive apparatus to one of the first platform and a second platform. The method further includes coupling the first platform to the second platform. The at least one second compression apparatus is coupled in series flow communication with the at least one first compression apparatus.